Báo cáo khoa học: "Collocation Extraction beyond the Independence Assumption" potx

... for p exp (the the) . Under independence, this estimate will be high, as the itself is very frequent. However, with our knowledge of English syntax, we would say p exp (the the) is low. The independence ... word is contained in the distribu- tion of the other. PMI was introduced into the collo- cation extraction field by Church and Hanks (1990). Dunning (1993) proposed the...

Ngày tải lên: 30/03/2014, 21:20

... using the perceptron algorithm. We follow that paper in fixing the weight of the generative model, rather than learning the weight along the the weights of the other perceptron fea- tures. The value ... in the tree, and j nodes to the left, which we will denote L ij . Hence, L 00 is the node label itself; L 10 is the label of parent of the current node; L 01 is the la...

Ngày tải lên: 23/03/2014, 19:20

... that they can make any decision they want as an open-ended ideal. This puts them in the position of being buyers in a consumer’s market. By asking them to make a choice, they imply that their authority ... life-in-death [4]. Patients may be stalled in suspended animation; they are not alive in the sense the we enjoy life but neither are they able to die as long as nutrition, hydration,...

Ngày tải lên: 25/10/2012, 10:45

... conventional rules of evolutionary conservation. The common picture emerging here is that the genes at the top of the cascade are not conserved, whereas the downstream genes have homologues in a much ... genetic studies led to the view that, across the animal kingdom, the gene-regulatory cascades triggering sexual develop- ment bear little resemblance to each other. As a resul...

Ngày tải lên: 14/02/2014, 19:20

... ligands. The additional water occupied the postulated superoxide bind- ing site. The thermal stability of the enzyme was compared with superoxide dismutase from Thermus thermophilus, a thermophilic ... His31, bound to the metal, in the company of a water oxygen, from the apical positions. The manga- nese was only 0.06 A ˚ out of the equatorial plane (Table 3). The angles a...

Ngày tải lên: 14/02/2014, 22:20

... to the catalytic site of the R1E subunit. As reported in the Results, upon completion of substrate conversion, the radical is then rapidly passed back from the R1E subunit to the tyrosyl of the ... other class 1 RNRs or, instead, is a result of the interaction of the R2F with the inactivated (oxidized) form of the R1E. We consider the first option unlikely. Under these...

Ngày tải lên: 15/02/2014, 01:20

... in apoptosis, the relationship of these two molecules is still largely unknown. The aim of the current study was to investigate the potential involvement of nucleolin ⁄ C23 in the antiapoptotic ... accompanied by the appear- ance and an increase in the 80 kDa fragment (Fig. 2). Although both the untransfected cells and the cells transfected with the vector alone started to...

Ngày tải lên: 16/02/2014, 09:20

... ed 3 phuang thdc the bien tren sdng: dpe, dpe kit hpp vdi noi va noi (dng khiu). LDgc Ekyc- theo td didn tieng Viet, li phit thinh lii nhung dieu di dupe viii ra, theo dung trinh ... trong vdn ban quy djnh each dgc cua nha bdo. Ngudi dgc khdng the tuy tien ngdt cdu, ngat doan, ngtmg nghi theo y thich, ma phai men theo dau chdm, ddu phay, cdch su dung ngd doan eua tdc g...

Ngày tải lên: 17/02/2014, 05:20

... containing the mutations of the miR-23a binding site (Fig. 4A). It was shown that miR-23a ASO or pcDNA3 ⁄ pri-23a did not affect the intensity of EGFP fluorescence in the vector bearing the mutant of the ... with the first potential binding site of the IL6R mRNA 3¢ UTR. (A) The three EGFP reporter vectors bear- ing mutations of the miR-23a seed region binding site are shown....

Ngày tải lên: 18/02/2014, 04:20

... dimers. Moreover, the rmsd values of Ca between the mono- mers in the dimers are 0.55 A ˚ between the A and B chains, 0.96 A ˚ between the C and D chains, and 0.51 A ˚ between the E and F chains. The main ... b3 and b4 near the Thr- binding site are observed. The mechanism of regulation by Thr is discussed on the basis of the crystal structures. TtAKb has higher thermost...

Ngày tải lên: 18/02/2014, 08:20